Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A surgical navigation system comprising: a 3D display system with a see-through visor; a tracking system comprising means for real-time tracking of: a surgeon's head, the see-through visor, a patient anatomy and a surgical instrument to provide current position and orientation data; a source of an operative plan, a patient anatomy data and a virtual surgical instrument model; a surgical navigation image generator configured to generate a surgical navigation image comprising a three-dimensional image representing simultaneously a virtual image of the surgical instrument corresponding to the current position and orientation of the surgical instrument and a virtual image of the surgical instrument indicating the suggested positions and orientation of the surgical instrument according to the operative plan data based on the current relative position and orientation of the surgeon's head, the see-through visor, the patient anatomy and the surgical instrument; wherein the 3D display system is configured to show the surgical navigation image at the see-through visor, such that an augmented reality image collocated with the patient anatomy in the surgical field underneath the see-through visor is visible to a viewer looking from above the see-through visor towards the surgical field, wherein the 3D display system comprises a 3D projector, a plurality of opaque mirrors, an opaque projection screen and a see-through mirror, wherein the 3D projector is configured to project the surgical navigation image towards the plurality of opaque mirrors for reflecting the surgical navigation image towards the opaque projection screen for showing the surgical navigation image for emission towards the see-through mirror, which is partially transparent and partially reflective.
2. The system of claim 1 , wherein the three-dimensional image of the surgical navigation image further comprises at least one of: the patient anatomy data, operative plan data, in accordance to the current position and orientation data provided by the tracking system.
This invention relates to surgical navigation systems that enhance precision during medical procedures by integrating real-time tracking with three-dimensional imaging. The system addresses the challenge of accurately aligning surgical tools with patient anatomy by providing dynamic visualization of the patient's anatomy and operative plan in real-time, synchronized with the current position and orientation of surgical instruments. The system includes a tracking system that monitors the position and orientation of surgical tools and a display that renders a three-dimensional image of the surgical navigation environment. This image incorporates patient anatomy data, such as anatomical structures and landmarks, and operative plan data, such as planned incision points or implant positions. The system updates the three-dimensional image in real-time based on the tracking data, ensuring that the displayed information remains accurate as the surgical tools move. This integration allows surgeons to visualize the relationship between the tools and the patient's anatomy, improving accuracy and reducing the risk of errors during procedures. The system may also include additional features, such as augmented reality overlays or haptic feedback, to further enhance surgical precision.
3. The system of claim 1 , wherein the three-dimensional image of the surgical navigation image further comprises a graphical cue indicating the required change of position and orientation of the surgical instrument to match the suggested position and orientation according to the pre-operative plan data.
This invention relates to surgical navigation systems that use three-dimensional imaging to guide surgical instruments during procedures. The system addresses the challenge of ensuring precise alignment of surgical instruments with pre-operative plans, which is critical for accuracy and patient safety. The system generates a three-dimensional image of the surgical navigation environment, incorporating a graphical cue that visually indicates the required adjustments in position and orientation of the surgical instrument. This cue helps the surgeon quickly understand how to adjust the instrument to match the suggested position and orientation defined by pre-operative plan data. The graphical cue provides real-time feedback, reducing the need for manual calculations or guesswork, thereby improving procedural efficiency and accuracy. The system may also include features such as tracking the instrument's position in real-time and comparing it against the pre-operative plan to generate the graphical cue. This ensures that the surgeon can make precise adjustments while maintaining focus on the surgical field. The overall goal is to enhance the surgeon's ability to follow the pre-operative plan accurately, minimizing errors and improving surgical outcomes.
4. The system of claim 1 , wherein the surgical navigation image further comprises a set of orthogonal (axial, sagittal, and coronal) and arbitrary planes of the patient anatomy data.
This invention relates to surgical navigation systems that enhance visualization of patient anatomy during medical procedures. The system addresses the challenge of providing surgeons with clear, multi-dimensional views of anatomical structures to improve precision and safety during surgery. The core system includes a display that presents a surgical navigation image, which integrates patient anatomy data with real-time surgical tool tracking. The navigation image is dynamically updated to reflect the position and orientation of surgical instruments relative to the patient's anatomy. A key feature of the system is the inclusion of orthogonal (axial, sagittal, and coronal) and arbitrary planes within the navigation image. These planes allow surgeons to view cross-sectional slices of the anatomy from multiple perspectives, enabling better spatial understanding and navigation. The arbitrary planes can be adjusted to any desired orientation, providing flexibility in visualizing complex anatomical regions. The system may also incorporate additional features such as tool trajectory visualization, anatomical landmarks, and reference markers to further assist in surgical guidance. The combination of orthogonal and customizable planes enhances the surgeon's ability to plan and execute procedures with greater accuracy, reducing the risk of errors and improving patient outcomes.
5. The system of claim 1 , wherein the 3D display system comprises a 3D projector and a see-through projection screen, wherein the 3D projector is configured to project the surgical navigation image onto the see-through projection screen, which is partially transparent and partially reflective, for showing the surgical navigation image.
This invention relates to a 3D display system for surgical navigation, addressing the need for clear, real-time visualization of surgical navigation data without obstructing the surgeon's view of the patient. The system integrates a 3D projector and a see-through projection screen, which is partially transparent and partially reflective. The 3D projector projects surgical navigation images, such as anatomical models or instrument guidance, onto the screen. The screen's partial transparency allows the surgeon to see through it while the partial reflectivity ensures the projected images remain visible. This design enables the overlay of digital navigation data onto the physical surgical field, improving accuracy and reducing the need for the surgeon to look away from the patient. The system enhances situational awareness by maintaining a direct line of sight to the patient while providing critical visual guidance. The see-through nature of the screen ensures minimal obstruction, making it suitable for use in sterile environments where traditional displays may interfere with the surgical workflow. The combination of 3D projection and a partially reflective screen creates a seamless integration of digital and physical elements, supporting precise surgical navigation.
6. The system of claim 1 , wherein the 3D display system comprises a 3D projector, an opaque projection screen and a see-through mirror, wherein the 3D projector is configured to project the surgical navigation image onto the opaque projection screen for showing the surgical navigation image for emission towards the see-through mirror, which is partially transparent and partially reflective.
This invention relates to a 3D display system for surgical navigation, addressing the need for clear, spatially accurate visualization of surgical navigation images during procedures. The system enhances the surgeon's ability to view critical anatomical and procedural data in a three-dimensional format, improving precision and reducing reliance on traditional 2D displays. The 3D display system includes a 3D projector, an opaque projection screen, and a see-through mirror. The 3D projector generates and projects a surgical navigation image onto the opaque projection screen, which displays the image for emission toward the see-through mirror. The see-through mirror is designed to be partially transparent and partially reflective, allowing the projected 3D image to be viewed while maintaining visibility of the surgical field. This configuration enables the surgeon to overlay the 3D navigation data directly onto the patient's anatomy, improving spatial awareness and reducing the need to shift focus between the display and the surgical site. The system ensures that the 3D image remains stable and aligned with the patient's position, enhancing accuracy during procedures.
7. A method for providing an augmented reality image during an operation, comprising: providing a 3D display system with a see-through visor; providing a tracking system comprising means for real-time tracking of: a surgeon's head, the 3D see-through visor, a patient anatomy and a surgical instrument to provide current position and orientation data; providing a source of: an operative plan, a patient anatomy data and a virtual surgical instrument model; generating, by a surgical navigation image generator, a surgical navigation image comprising: a three-dimensional image representing simultaneously a virtual image of the surgical instrument corresponding to the current position and orientation of the surgical instrument and a virtual image of the surgical instrument indicating the suggested positions and orientations of the surgical instruments according to the operative plan based on the current relative position and orientation of the surgeon's head, the see-through visor, the patient anatomy and the surgical instrument; showing the surgical navigation image at the see-through visor, such that an augmented reality image collocated with the patient anatomy in the surgical field underneath the see-through visor is visible to a viewer looking from above the see-through visor towards the surgical field, wherein the 3D display system comprises a 3D projector, a plurality of opaque mirrors, an opaque projection screen and a see-through mirror, wherein the 3D projector is configured to project the surgical navigation image towards the plurality of opaque mirrors for reflecting the surgical navigation image towards the opaque projection screen for showing the surgical navigation image for emission towards the see-through mirror, which is partially transparent and partially reflective.
This invention relates to augmented reality (AR) systems for surgical navigation, addressing the challenge of providing real-time, spatially accurate visual guidance during operations. The system integrates a 3D display with a see-through visor, a tracking system, and a surgical navigation image generator. The tracking system monitors the surgeon's head, the visor, the patient's anatomy, and surgical instruments in real time, capturing their positions and orientations. A data source supplies the operative plan, patient anatomy data, and virtual instrument models. The navigation image generator creates a 3D image overlay that simultaneously displays the current position of the surgical instrument and its suggested position based on the operative plan, adjusted for the surgeon's viewpoint. The 3D display system uses a projector, opaque mirrors, a projection screen, and a see-through mirror to project the AR image onto the surgical field, ensuring the virtual elements appear collocated with the patient's anatomy. This setup enhances precision by providing dynamic, context-aware visual feedback, improving surgical accuracy and reducing reliance on traditional navigation methods. The system is designed to minimize visual obstruction while maintaining high fidelity in the AR overlay.
Unknown
May 12, 2020
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